package com.ithinks.flow.common.utils.middleware.kafka.config;

import org.apache.kafka.clients.producer.ProducerConfig;
import org.apache.kafka.common.serialization.StringSerializer;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.kafka.annotation.EnableKafka;
import org.springframework.kafka.core.DefaultKafkaProducerFactory;
import org.springframework.kafka.core.KafkaTemplate;
import org.springframework.kafka.core.ProducerFactory;

import java.util.HashMap;
import java.util.Map;

/**
 * @Description
 * @ClassName KafkaConfig
 * @Author MR.LI
 * @date 2020.11.25 17:38
 */
@Configuration
@EnableKafka
public class KafkaProviderConfig {

    @Value("${kafka.producer.servers}")
    private String server;

    @Value("{$kafka.producer.retries}")
    private int retries;

    @Value("{$kafka.producer.batch.size}")
    private int batchsize;

    @Value("{$kafka.producer.linger}")
    private int linger;

    @Value("{$kafka.producer.buffer.memory}")
    private int bufferMemory;


    public Map<String,Object> producerConfig(){

        Map<String,Object> props = new HashMap<>();
        props.put(ProducerConfig.BOOTSTRAP_SERVERS_CONFIG,server);
        props.put(ProducerConfig.RETRIES_CONFIG,retries);
        props.put(ProducerConfig.BATCH_SIZE_CONFIG,batchsize);
        props.put(ProducerConfig.LINGER_MS_CONFIG,linger);
        props.put(ProducerConfig.BUFFER_MEMORY_CONFIG,bufferMemory);
        props.put(ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG, StringSerializer.class);
        props.put(ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG,StringSerializer.class);
        return props;
    }

    public ProducerFactory<String,Object> producerFactory()
    {
        return new DefaultKafkaProducerFactory<>(producerConfig());
    }


    @Bean
    public KafkaTemplate<String,Object> kafkaTemplate()
    {
        return new KafkaTemplate<String,Object>(producerFactory());
    }

}
